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Real-time laser-based measurement of interface temperature during droplet impingement on a cold surface.

Author(s) : CHEN Q., LI Y., LONGTIN J. P.

Type of article: Article

Summary

This work presents a laser-based thermoreflectance technique to measure the real-time change in temperature of a liquid-solid interface when a heated liquid droplet impinges on a transparent substrate. Temperature variation at the interface results in refractive index changes in both the liquid and substrate, which, in turn, cause a reflectivity change at the interface. A 5 mW HeNe laser and a silicon photodiode are used to monitor the real-time reflectivity of the interface. The test and the results obtained are presented.

Details

  • Original title: Real-time laser-based measurement of interface temperature during droplet impingement on a cold surface.
  • Record ID : 2003-1704
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 46 - n. 5
  • Publication date: 2003/02

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